Without delay, let's solve this. We've got 798 and we will be multiplying it by 404, that is, adding 798 to itself 404 times.
Step 1: 0 + 798 = 798
Step 2: 798 + 798 = 1596
Step 3: 1596 + 798 = 2394
Step 4: 2394 + 798 = 3192
Step 5: 3192 + 798 = 3990
Step 6: 3990 + 798 = 4788
Step 7: 4788 + 798 = 5586
Step 8: 5586 + 798 = 6384
Step 9: 6384 + 798 = 7182
Step 10: 7182 + 798 = 7980
Step 11: 7980 + 798 = 8778
Step 12: 8778 + 798 = 9576
Step 13: 9576 + 798 = 10374
Step 14: 10374 + 798 = 11172
Step 15: 11172 + 798 = 11970
Step 16: 11970 + 798 = 12768
Step 17: 12768 + 798 = 13566
Step 18: 13566 + 798 = 14364
Step 19: 14364 + 798 = 15162
Step 20: 15162 + 798 = 15960
Step 21: 15960 + 798 = 16758
Step 22: 16758 + 798 = 17556
Step 23: 17556 + 798 = 18354
Step 24: 18354 + 798 = 19152
Step 25: 19152 + 798 = 19950
Step 26: 19950 + 798 = 20748
Step 27: 20748 + 798 = 21546
Step 28: 21546 + 798 = 22344
Step 29: 22344 + 798 = 23142
Step 30: 23142 + 798 = 23940
Step 31: 23940 + 798 = 24738
Step 32: 24738 + 798 = 25536
Step 33: 25536 + 798 = 26334
Step 34: 26334 + 798 = 27132
Step 35: 27132 + 798 = 27930
Step 36: 27930 + 798 = 28728
Step 37: 28728 + 798 = 29526
Step 38: 29526 + 798 = 30324
Step 39: 30324 + 798 = 31122
Step 40: 31122 + 798 = 31920
Step 41: 31920 + 798 = 32718
Step 42: 32718 + 798 = 33516
Step 43: 33516 + 798 = 34314
Step 44: 34314 + 798 = 35112
Step 45: 35112 + 798 = 35910
Step 46: 35910 + 798 = 36708
Step 47: 36708 + 798 = 37506
Step 48: 37506 + 798 = 38304
Step 49: 38304 + 798 = 39102
Step 50: 39102 + 798 = 39900
Step 51: 39900 + 798 = 40698
Step 52: 40698 + 798 = 41496
Step 53: 41496 + 798 = 42294
Step 54: 42294 + 798 = 43092
Step 55: 43092 + 798 = 43890
Step 56: 43890 + 798 = 44688
Step 57: 44688 + 798 = 45486
Step 58: 45486 + 798 = 46284
Step 59: 46284 + 798 = 47082
Step 60: 47082 + 798 = 47880
Step 61: 47880 + 798 = 48678
Step 62: 48678 + 798 = 49476
Step 63: 49476 + 798 = 50274
Step 64: 50274 + 798 = 51072
Step 65: 51072 + 798 = 51870
Step 66: 51870 + 798 = 52668
Step 67: 52668 + 798 = 53466
Step 68: 53466 + 798 = 54264
Step 69: 54264 + 798 = 55062
Step 70: 55062 + 798 = 55860
Step 71: 55860 + 798 = 56658
Step 72: 56658 + 798 = 57456
Step 73: 57456 + 798 = 58254
Step 74: 58254 + 798 = 59052
Step 75: 59052 + 798 = 59850
Step 76: 59850 + 798 = 60648
Step 77: 60648 + 798 = 61446
Step 78: 61446 + 798 = 62244
Step 79: 62244 + 798 = 63042
Step 80: 63042 + 798 = 63840
Step 81: 63840 + 798 = 64638
Step 82: 64638 + 798 = 65436
Step 83: 65436 + 798 = 66234
Step 84: 66234 + 798 = 67032
Step 85: 67032 + 798 = 67830
Step 86: 67830 + 798 = 68628
Step 87: 68628 + 798 = 69426
Step 88: 69426 + 798 = 70224
Step 89: 70224 + 798 = 71022
Step 90: 71022 + 798 = 71820
Step 91: 71820 + 798 = 72618
Step 92: 72618 + 798 = 73416
Step 93: 73416 + 798 = 74214
Step 94: 74214 + 798 = 75012
Step 95: 75012 + 798 = 75810
Step 96: 75810 + 798 = 76608
Step 97: 76608 + 798 = 77406
Step 98: 77406 + 798 = 78204
Step 99: 78204 + 798 = 79002
Step 100: 79002 + 798 = 79800
Step 101: 79800 + 798 = 80598
Step 102: 80598 + 798 = 81396
Step 103: 81396 + 798 = 82194
Step 104: 82194 + 798 = 82992
Step 105: 82992 + 798 = 83790
Step 106: 83790 + 798 = 84588
Step 107: 84588 + 798 = 85386
Step 108: 85386 + 798 = 86184
Step 109: 86184 + 798 = 86982
Step 110: 86982 + 798 = 87780
Step 111: 87780 + 798 = 88578
Step 112: 88578 + 798 = 89376
Step 113: 89376 + 798 = 90174
Step 114: 90174 + 798 = 90972
Step 115: 90972 + 798 = 91770
Step 116: 91770 + 798 = 92568
Step 117: 92568 + 798 = 93366
Step 118: 93366 + 798 = 94164
Step 119: 94164 + 798 = 94962
Step 120: 94962 + 798 = 95760
Step 121: 95760 + 798 = 96558
Step 122: 96558 + 798 = 97356
Step 123: 97356 + 798 = 98154
Step 124: 98154 + 798 = 98952
Step 125: 98952 + 798 = 99750
Step 126: 99750 + 798 = 100548
Step 127: 100548 + 798 = 101346
Step 128: 101346 + 798 = 102144
Step 129: 102144 + 798 = 102942
Step 130: 102942 + 798 = 103740
Step 131: 103740 + 798 = 104538
Step 132: 104538 + 798 = 105336
Step 133: 105336 + 798 = 106134
Step 134: 106134 + 798 = 106932
Step 135: 106932 + 798 = 107730
Step 136: 107730 + 798 = 108528
Step 137: 108528 + 798 = 109326
Step 138: 109326 + 798 = 110124
Step 139: 110124 + 798 = 110922
Step 140: 110922 + 798 = 111720
Step 141: 111720 + 798 = 112518
Step 142: 112518 + 798 = 113316
Step 143: 113316 + 798 = 114114
Step 144: 114114 + 798 = 114912
Step 145: 114912 + 798 = 115710
Step 146: 115710 + 798 = 116508
Step 147: 116508 + 798 = 117306
Step 148: 117306 + 798 = 118104
Step 149: 118104 + 798 = 118902
Step 150: 118902 + 798 = 119700
Step 151: 119700 + 798 = 120498
Step 152: 120498 + 798 = 121296
Step 153: 121296 + 798 = 122094
Step 154: 122094 + 798 = 122892
Step 155: 122892 + 798 = 123690
Step 156: 123690 + 798 = 124488
Step 157: 124488 + 798 = 125286
Step 158: 125286 + 798 = 126084
Step 159: 126084 + 798 = 126882
Step 160: 126882 + 798 = 127680
Step 161: 127680 + 798 = 128478
Step 162: 128478 + 798 = 129276
Step 163: 129276 + 798 = 130074
Step 164: 130074 + 798 = 130872
Step 165: 130872 + 798 = 131670
Step 166: 131670 + 798 = 132468
Step 167: 132468 + 798 = 133266
Step 168: 133266 + 798 = 134064
Step 169: 134064 + 798 = 134862
Step 170: 134862 + 798 = 135660
Step 171: 135660 + 798 = 136458
Step 172: 136458 + 798 = 137256
Step 173: 137256 + 798 = 138054
Step 174: 138054 + 798 = 138852
Step 175: 138852 + 798 = 139650
Step 176: 139650 + 798 = 140448
Step 177: 140448 + 798 = 141246
Step 178: 141246 + 798 = 142044
Step 179: 142044 + 798 = 142842
Step 180: 142842 + 798 = 143640
Step 181: 143640 + 798 = 144438
Step 182: 144438 + 798 = 145236
Step 183: 145236 + 798 = 146034
Step 184: 146034 + 798 = 146832
Step 185: 146832 + 798 = 147630
Step 186: 147630 + 798 = 148428
Step 187: 148428 + 798 = 149226
Step 188: 149226 + 798 = 150024
Step 189: 150024 + 798 = 150822
Step 190: 150822 + 798 = 151620
Step 191: 151620 + 798 = 152418
Step 192: 152418 + 798 = 153216
Step 193: 153216 + 798 = 154014
Step 194: 154014 + 798 = 154812
Step 195: 154812 + 798 = 155610
Step 196: 155610 + 798 = 156408
Step 197: 156408 + 798 = 157206
Step 198: 157206 + 798 = 158004
Step 199: 158004 + 798 = 158802
Step 200: 158802 + 798 = 159600
Step 201: 159600 + 798 = 160398
Step 202: 160398 + 798 = 161196
Step 203: 161196 + 798 = 161994
Step 204: 161994 + 798 = 162792
Step 205: 162792 + 798 = 163590
Step 206: 163590 + 798 = 164388
Step 207: 164388 + 798 = 165186
Step 208: 165186 + 798 = 165984
Step 209: 165984 + 798 = 166782
Step 210: 166782 + 798 = 167580
Step 211: 167580 + 798 = 168378
Step 212: 168378 + 798 = 169176
Step 213: 169176 + 798 = 169974
Step 214: 169974 + 798 = 170772
Step 215: 170772 + 798 = 171570
Step 216: 171570 + 798 = 172368
Step 217: 172368 + 798 = 173166
Step 218: 173166 + 798 = 173964
Step 219: 173964 + 798 = 174762
Step 220: 174762 + 798 = 175560
Step 221: 175560 + 798 = 176358
Step 222: 176358 + 798 = 177156
Step 223: 177156 + 798 = 177954
Step 224: 177954 + 798 = 178752
Step 225: 178752 + 798 = 179550
Step 226: 179550 + 798 = 180348
Step 227: 180348 + 798 = 181146
Step 228: 181146 + 798 = 181944
Step 229: 181944 + 798 = 182742
Step 230: 182742 + 798 = 183540
Step 231: 183540 + 798 = 184338
Step 232: 184338 + 798 = 185136
Step 233: 185136 + 798 = 185934
Step 234: 185934 + 798 = 186732
Step 235: 186732 + 798 = 187530
Step 236: 187530 + 798 = 188328
Step 237: 188328 + 798 = 189126
Step 238: 189126 + 798 = 189924
Step 239: 189924 + 798 = 190722
Step 240: 190722 + 798 = 191520
Step 241: 191520 + 798 = 192318
Step 242: 192318 + 798 = 193116
Step 243: 193116 + 798 = 193914
Step 244: 193914 + 798 = 194712
Step 245: 194712 + 798 = 195510
Step 246: 195510 + 798 = 196308
Step 247: 196308 + 798 = 197106
Step 248: 197106 + 798 = 197904
Step 249: 197904 + 798 = 198702
Step 250: 198702 + 798 = 199500
Step 251: 199500 + 798 = 200298
Step 252: 200298 + 798 = 201096
Step 253: 201096 + 798 = 201894
Step 254: 201894 + 798 = 202692
Step 255: 202692 + 798 = 203490
Step 256: 203490 + 798 = 204288
Step 257: 204288 + 798 = 205086
Step 258: 205086 + 798 = 205884
Step 259: 205884 + 798 = 206682
Step 260: 206682 + 798 = 207480
Step 261: 207480 + 798 = 208278
Step 262: 208278 + 798 = 209076
Step 263: 209076 + 798 = 209874
Step 264: 209874 + 798 = 210672
Step 265: 210672 + 798 = 211470
Step 266: 211470 + 798 = 212268
Step 267: 212268 + 798 = 213066
Step 268: 213066 + 798 = 213864
Step 269: 213864 + 798 = 214662
Step 270: 214662 + 798 = 215460
Step 271: 215460 + 798 = 216258
Step 272: 216258 + 798 = 217056
Step 273: 217056 + 798 = 217854
Step 274: 217854 + 798 = 218652
Step 275: 218652 + 798 = 219450
Step 276: 219450 + 798 = 220248
Step 277: 220248 + 798 = 221046
Step 278: 221046 + 798 = 221844
Step 279: 221844 + 798 = 222642
Step 280: 222642 + 798 = 223440
Step 281: 223440 + 798 = 224238
Step 282: 224238 + 798 = 225036
Step 283: 225036 + 798 = 225834
Step 284: 225834 + 798 = 226632
Step 285: 226632 + 798 = 227430
Step 286: 227430 + 798 = 228228
Step 287: 228228 + 798 = 229026
Step 288: 229026 + 798 = 229824
Step 289: 229824 + 798 = 230622
Step 290: 230622 + 798 = 231420
Step 291: 231420 + 798 = 232218
Step 292: 232218 + 798 = 233016
Step 293: 233016 + 798 = 233814
Step 294: 233814 + 798 = 234612
Step 295: 234612 + 798 = 235410
Step 296: 235410 + 798 = 236208
Step 297: 236208 + 798 = 237006
Step 298: 237006 + 798 = 237804
Step 299: 237804 + 798 = 238602
Step 300: 238602 + 798 = 239400
Step 301: 239400 + 798 = 240198
Step 302: 240198 + 798 = 240996
Step 303: 240996 + 798 = 241794
Step 304: 241794 + 798 = 242592
Step 305: 242592 + 798 = 243390
Step 306: 243390 + 798 = 244188
Step 307: 244188 + 798 = 244986
Step 308: 244986 + 798 = 245784
Step 309: 245784 + 798 = 246582
Step 310: 246582 + 798 = 247380
Step 311: 247380 + 798 = 248178
Step 312: 248178 + 798 = 248976
Step 313: 248976 + 798 = 249774
Step 314: 249774 + 798 = 250572
Step 315: 250572 + 798 = 251370
Step 316: 251370 + 798 = 252168
Step 317: 252168 + 798 = 252966
Step 318: 252966 + 798 = 253764
Step 319: 253764 + 798 = 254562
Step 320: 254562 + 798 = 255360
Step 321: 255360 + 798 = 256158
Step 322: 256158 + 798 = 256956
Step 323: 256956 + 798 = 257754
Step 324: 257754 + 798 = 258552
Step 325: 258552 + 798 = 259350
Step 326: 259350 + 798 = 260148
Step 327: 260148 + 798 = 260946
Step 328: 260946 + 798 = 261744
Step 329: 261744 + 798 = 262542
Step 330: 262542 + 798 = 263340
Step 331: 263340 + 798 = 264138
Step 332: 264138 + 798 = 264936
Step 333: 264936 + 798 = 265734
Step 334: 265734 + 798 = 266532
Step 335: 266532 + 798 = 267330
Step 336: 267330 + 798 = 268128
Step 337: 268128 + 798 = 268926
Step 338: 268926 + 798 = 269724
Step 339: 269724 + 798 = 270522
Step 340: 270522 + 798 = 271320
Step 341: 271320 + 798 = 272118
Step 342: 272118 + 798 = 272916
Step 343: 272916 + 798 = 273714
Step 344: 273714 + 798 = 274512
Step 345: 274512 + 798 = 275310
Step 346: 275310 + 798 = 276108
Step 347: 276108 + 798 = 276906
Step 348: 276906 + 798 = 277704
Step 349: 277704 + 798 = 278502
Step 350: 278502 + 798 = 279300
Step 351: 279300 + 798 = 280098
Step 352: 280098 + 798 = 280896
Step 353: 280896 + 798 = 281694
Step 354: 281694 + 798 = 282492
Step 355: 282492 + 798 = 283290
Step 356: 283290 + 798 = 284088
Step 357: 284088 + 798 = 284886
Step 358: 284886 + 798 = 285684
Step 359: 285684 + 798 = 286482
Step 360: 286482 + 798 = 287280
Step 361: 287280 + 798 = 288078
Step 362: 288078 + 798 = 288876
Step 363: 288876 + 798 = 289674
Step 364: 289674 + 798 = 290472
Step 365: 290472 + 798 = 291270
Step 366: 291270 + 798 = 292068
Step 367: 292068 + 798 = 292866
Step 368: 292866 + 798 = 293664
Step 369: 293664 + 798 = 294462
Step 370: 294462 + 798 = 295260
Step 371: 295260 + 798 = 296058
Step 372: 296058 + 798 = 296856
Step 373: 296856 + 798 = 297654
Step 374: 297654 + 798 = 298452
Step 375: 298452 + 798 = 299250
Step 376: 299250 + 798 = 300048
Step 377: 300048 + 798 = 300846
Step 378: 300846 + 798 = 301644
Step 379: 301644 + 798 = 302442
Step 380: 302442 + 798 = 303240
Step 381: 303240 + 798 = 304038
Step 382: 304038 + 798 = 304836
Step 383: 304836 + 798 = 305634
Step 384: 305634 + 798 = 306432
Step 385: 306432 + 798 = 307230
Step 386: 307230 + 798 = 308028
Step 387: 308028 + 798 = 308826
Step 388: 308826 + 798 = 309624
Step 389: 309624 + 798 = 310422
Step 390: 310422 + 798 = 311220
Step 391: 311220 + 798 = 312018
Step 392: 312018 + 798 = 312816
Step 393: 312816 + 798 = 313614
Step 394: 313614 + 798 = 314412
Step 395: 314412 + 798 = 315210
Step 396: 315210 + 798 = 316008
Step 397: 316008 + 798 = 316806
Step 398: 316806 + 798 = 317604
Step 399: 317604 + 798 = 318402
Step 400: 318402 + 798 = 319200
Step 401: 319200 + 798 = 319998
Step 402: 319998 + 798 = 320796
Step 403: 320796 + 798 = 321594
Step 404: 321594 + 798 = 322392

So, 798*404 = 322392